CN107147153A - Battery management system and battery system using same - Google Patents
Battery management system and battery system using same Download PDFInfo
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- CN107147153A CN107147153A CN201610200280.XA CN201610200280A CN107147153A CN 107147153 A CN107147153 A CN 107147153A CN 201610200280 A CN201610200280 A CN 201610200280A CN 107147153 A CN107147153 A CN 107147153A
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- element cell
- battery pack
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- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000007726 management method Methods 0.000 claims description 37
- 230000005611 electricity Effects 0.000 claims description 32
- 238000004146 energy storage Methods 0.000 claims description 31
- 238000002955 isolation Methods 0.000 claims description 28
- 238000003491 array Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 6
- 238000013500 data storage Methods 0.000 claims description 5
- 230000006866 deterioration Effects 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 4
- 230000003862 health status Effects 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
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- 230000002123 temporal effect Effects 0.000 claims 1
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- 238000007600 charging Methods 0.000 description 11
- 230000008878 coupling Effects 0.000 description 9
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
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- H02J7/0077—
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- H02J7/0091—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
- H02J7/0049—Detection of fully charged condition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a battery system which comprises a unit battery module, a current and electric quantity detection circuit and a main control circuit. The unit cell module includes a battery pack and a unit cell management circuit. The battery pack is used for storing electric energy. The unit battery management circuit calculates battery information of the battery pack according to the system current value, the system electric quantity value, the voltage value of the battery pack and the temperature value of the battery pack. The current and electric quantity detection circuit is coupled with the unit battery module, generates a system current value according to the current flowing through the battery pack, integrates the system current value to generate a system electric quantity value, and sends the system current value and the system electric quantity value to the unit battery module. The main control circuit is coupled to the unit battery modules, receives the battery information from the unit battery modules, and generates system battery information according to the battery information to provide the system battery information to an external device.
Description
Technical field
The present invention relates to a kind of battery management system and using its battery system.
Background technology
Battery system has widely been used in the energy storage of all kinds of electric cars, UPS and correlation
Device etc..Battery system can be managed to battery, to avoid to the excessive charge/discharge of battery or overheat etc.
Anomalous event occurs.
Traditionally, battery system system focuses on, stores the information from each battery pack.However, with
The increasing number of battery pack in system, the operand of associated processing circuit will be significantly increased, and work as portion
Point battery pack is replaced, and will need to expend suitable time and human cost to update integral battery door group again
Information so that system update safeguard be difficult.
Therefore, a kind of battery system for being easy to manage, safeguard how is proposed, is that current industry is endeavoured
One of problem.
The content of the invention
The present invention proposes a kind of battery management system and applies its battery system, and it uses modular
The battery information of the different battery packs of framework decentralized measure, decentralized processing, thus master control is electric in reduction system
The operand on road, and simplify the complexity for changing battery pack, and then the maintainability of lifting system.
According to one embodiment of the invention, propose a kind of battery system, it include element cell module,
Current capacity detects circuit and governor circuit.Element cell module includes battery pack and element cell
Manage circuit.Battery pack is to store electric energy.Element cell manages circuit foundation System current, is
The temperature value for charge value, the magnitude of voltage of battery pack and the battery pack of uniting calculates the battery information of battery pack.
Current capacity detects circuit coupling unit battery module, and it is according to the current generating system for flowing through battery pack
Current value, and be integrated System current with generation system charge value, and by System current
And system charge value is sent to element cell module.Governor circuit coupling unit battery module, it is certainly
Element cell module receive battery information, and according to battery information generation system battery information with provide to
External device (ED).
According to one embodiment of the invention, a kind of battery management system is proposed, it is suitable to management battery pack
Information.Battery management system includes element cell management circuit, current capacity detection circuit and master
Control circuit.Element cell management circuit is according to System current, system charge value, the voltage of battery pack
The temperature value of value and battery pack calculates the battery information of battery pack.Current capacity detection circuit coupling is single
First battery management circuit, it is according to the current generating system current value for flowing through battery pack, to system power
Value is integrated with generation system charge value, and System current and system charge value are sent to unit
Battery management circuit.Governor circuit coupling unit battery management circuit, it manages circuit from element cell
Battery information is received, and according to battery information generation system battery information to provide to external device (ED).
More preferably understand in order to which the above-mentioned and other aspect to the present invention has, preferred embodiment cited below particularly,
And coordinate institute's accompanying drawings, it is described in detail below：
Brief description of the drawings
Fig. 1 is the block diagram of the battery system 100 according to one embodiment of the invention.
Fig. 2 is the block diagram of the element cell module Mi according to one embodiment of the invention.
Fig. 3 is the block diagram of the balance control circuit 212 according to one embodiment of the invention.
Fig. 4 is the block diagram of the balance control circuit 212 according to one embodiment of the invention.
Fig. 5 is one of the block diagram of Fig. 1 governor circuit 108.
Fig. 6 is one of the block diagram of Fig. 1 current capacity detection circuit 106.
【Symbol description】
100：Battery system
102_1~102_N, 102_i：Battery pack
104_1~104_N, 104_i：Battery management circuit
106：Current capacity detects circuit
108：Governor circuit
110：External device (ED)
112：Current sensor
114：Principal current is switched
M1~MN：Element cell module
I：System current
Q：System charge value
V1~VN, Vi：Magnitude of voltage
T1~TN, Ti：Temperature value
BI1~BIN, BIi：Battery information
P+、P-：Electric power output input
EL：Urgency message line
SBI：System battery information
202：Measuring circuit
204：First isolation telecommunication circuit
206：Arithmetic control circuit
208：Storage circuit
210：Power supply unit
212：Balance control circuit
B1~BK：Battery
304：Energy storage device
306：Switch arrays
308：External power source
404：Discharger
S1：First charge switch
S2：Second charge switch
S3：First discharge switch
S4：Second discharge switch
EQbus：Discharge and recharge bus
502：Second isolation telecommunication circuit
504：Main arithmetic control circuit
506：3rd isolation telecommunication circuit
508：Main power source converter
510：Main program storage circuit
512：Timing and wake-up circuit
514：ON-OFF control circuit
516：Data storage circuitry
602：4th isolation telecommunication circuit
604：Current capacity computing circuit
606：Information storage circuit
608：Power supply changeover device
610：Program storing circuit
612：Current sense and protection circuit
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific reality
Example is applied, and referring to the drawings, the present invention is described in further detail.
Herein, some embodiments of the present invention are carefully described with reference to institute's accompanying drawings, but is not institute
There is embodiment to have expression in the example shown.In fact, a variety of different deformations can be used in these inventions,
And it is not limited to embodiment herein.Relative, the present invention provides these embodiments to meet application
Legal requirements.Identical reference symbol is used for representing same or analogous element in schema.
Fig. 1 is the block diagram of the battery system 100 according to one embodiment of the invention.Battery system 100
Mainly include one or more element cell modules M1~MN (N is positive integer), current capacity detection electricity
Road 106 and governor circuit 108.
Each element cell module M1~MN includes respective battery pack and element cell management circuit.
As shown in figure 1, element cell module M1 includes battery pack 102_1 and battery management circuit 104_1；
Element cell module M2 includes battery pack 102_2 and battery management circuit 104_2；Element cell mould
Block MN includes battery pack 102_N and battery management circuit 104_N.Element cell module M1~MN
For example, sequentially concatenate, that is to say, that each battery pack 102_1~102_N electric current line concatenation, and respectively
Element cell management circuit 104_1~104_N signal wire concatenation.In general, can be by battery system
The integrated circuit component not comprising battery pack (such as 102_1~102_N) is considered as a battery management system in 100
Unite (Battery Management System, BMS), the information to manage, handle each battery pack.
Battery pack 102_1~102_N is to store electric energy.Each unit battery management circuit
104_1~104_N can be according to System current I, system charge value Q, correspondence battery pack
102_1~102_N magnitude of voltage V1~VN and correspondence battery pack 102_1~102_N temperature value
T1~TN calculates correspondence battery pack 102_1~102_N battery information.System current I is for example represented
Stringing cells group 102_1~102_N electric current is flowed through, and based on the relational expression between electric current and electricity：
Q=∫ Idt, System current I, which make integration to time t, can obtain system charge value Q, to represent whole
Body battery pack 102_1~102_N total electricity.
Because the information needed for estimation battery status is mostly based on four kinds of electric current, electricity, voltage and temperature
Parameter, therefore each unit battery module M1~MN is after the information of above-mentioned four kinds of parameters is obtained, you can it is logical
The battery information crossed needed for computing is produced.For example, element cell management circuit 104_1 can foundation
System current I, system charge value Q, battery pack 102_1 magnitude of voltage V1 and battery pack 102_1
Temperature value T1 calculate battery pack 102_1 battery information BI1；Element cell management circuit 104_2
Can according to System current I, system charge value Q, battery pack 102_2 magnitude of voltage V2 and battery
Group 102_2 temperature value T2 calculates battery pack 102_2 battery information BI2；Element cell is managed
Circuit 104_N can according to System current I, system charge value Q, battery pack 102_N magnitude of voltage
VN and battery pack 102_N temperature value TN calculates battery pack 102_N battery information BIN.
Each battery information BI1~BIN for example including correspondence battery pack residual electricity, deterioration capacity, internal resistance and
Health status at least one.
The current capacity detection coupling each unit battery module of circuit 106 M1~MN, can be each according to flowing through
Battery pack 102_1~102_N current generating system current value I, and System current I is accumulated
Divide with generation system charge value Q, then System current I and system charge value Q are sent to each list
First battery module M1~MN.For example, current capacity detection circuit 106 can be total via a communication
System current I and system charge value Q is broadcasted (broadcast) to each unit battery module by line
M1~MN.Communication bus can be controller local area network (Controller Area Network, CAN)
Between bus, interconnection system LAN (Local Interconnect Network, LIN) bus, integrated circuit
(Inter-Integrated Circuit, I2C) bus, RS485 buses etc..In one embodiment, electric current electricity
Amount detection circuit 106 can be built into governor circuit 108.In another embodiment, current capacity detection electricity
Road 106 can be realized by one independently of the circuit of governor circuit 108.
The external main representative data for being responsible for producing battery system 100 of governor circuit 108 are simultaneously filled with outside
Put 110 ditches and pass to transmitting-receiving related data and control instruction, be internally then responsible for and each unit battery module
Communication between M1~MN, for example, receive the related data of each unit battery module M1~MN passbacks,
And convert thereof into the representative data of battery system 100.As shown in figure 1, governor circuit 108 is coupled
Each unit battery module M1~MN, it receives the corresponding battery letters of each unit battery module M1~MN
BI1~BIN is ceased, and according to battery information BI1~BIN generation system battery information SBI to provide to outer
Part device 110.For example, governor circuit 108 is being received each unit battery module M1~MN times
The associated batteries letters such as highest, minimum voltage, temperature, residual electricity, deterioration capacity, the guard mode of biography
Cease BI1~BIN after, by via computing to obtain the system battery information SBI of integral battery door system 100,
Such as system temperature, voltage, residual electricity.External device (ED) 110 is, for example, motor, instrument board, filled
Electrical equipment or other energy-dissipating devices, can response system battery information SBI adjust its power consumption state.
In one embodiment, battery system 100 also includes current sensor 112.Current sensor 112
Concatenate and (for example concatenated with electric current line) with element cell module M1~MN, and be coupled to current capacity inspection
Slowdown monitoring circuit 106.Current sensor 112 flows through element cell module M1~MN battery to measure
Group 102_1~102_N electric current, so that current capacity detection circuit 106 obtains System current I.
Current sensor 112 can be for example with current transformer (Current shunt), Hall sensor or other are detectable
The sensing element of electric current is realized.In one embodiment, current sensor 112 can be integrated into electric current electricity
Among amount detection circuit 106.
In one embodiment, battery system 100 also includes principal current switch 114.Principal current switch 114
It is controlled by governor circuit 108, optionally the discharge and recharge path of on or off battery system 100,
To avoid the battery in battery system 100 from being damaged because of unusual conditions such as excessive charge/discharge.Principal current is opened
114 any positions that may be disposed at both positive and negative polarity on the outgoing route of battery system 100 are closed, for example, are set
In the anode (P+) or negative terminal (P-) of electric power output, as Fig. 1 be exemplified by being placed in P+ positions, but this
Invention is not limited thereto.
When element cell manages the magnitude of voltage that circuit (such as 104_1) detects correspondence battery pack (such as 102_1)
(such as V1) meets a voltage warning conditions (such as voltage exceeds warning value or the change of other electric voltage exceptions), or
The temperature value (such as T1) for detecting correspondence battery pack meets a temperature warning condition (such as temperature exceeds warning
Value or the change of other temperature anomalies), element cell management circuit (such as 104_1) will be via communication bus (such as
CAN/LIN/I2C/RS485 buses etc.) alarm signal is sent to governor circuit 108, make governor circuit
108 close principal currents switch 114 to cut off the discharge and recharge path of battery system 100.In general,
Alarm signal can be endowed higher order of priority on communication bus compared to other data transfers
(priority), to circulate a notice of the unusual condition of governor circuit 108 in real time.
On the other hand, governor circuit 108 also directly can detect that circuit 106 obtains system by current capacity
Unite current value I and system charge value Q, and meets electric current warning in detecting System current I
Condition (such as electric current exceeds warning value or other current value anomalous variations), or detect system charge value
When Q meets a battery alert condition (such as electricity exceeds warning value or other electricity anomalous variations), actively
Principal current switch 114 is closed to cut off discharge and recharge path.
In one embodiment, element cell management circuit 104_1~104_N is also via urgency message line
EL is coupled to governor circuit 108.When element cell management circuit (such as 104_1) discovery can not be by logical
Believe that bus sends alarm signal to governor circuit 108, element cell manages circuit by enable urgency message
Line EL, makes governor circuit 108 close principal current switch 114 to cut off discharge and recharge path.Enable is tight
Suddenly circular line EL mode can be realized for example by way of changing urgency message line EL voltages,
Seem to draw high/drag down urgency message line EL voltage, apply pulse etc..By urgency message line EL,
Element cell management circuit 104_1~104_N still can be effectively in transmission mechanism failure
Notify that governor circuit 108 is powered off, with consolidation system protection mechanism.
In one embodiment, battery system 100 also includes external power source 116.External power source 116
12 volts of lead-acid battery or other independent low-voltage dc power supplies in this way, to governor circuit 108
And the partial circuit in element cell management circuit 104_1~104_N is powered.
Fig. 2 is the block diagram of the element cell module Mi according to one embodiment of the invention.Element cell
Module Mi is, for example, one of element cell module M1~MN persons in Fig. 1, i.e. 1≤i≤N.
Element cell module Mi includes battery pack 102_i and element cell management circuit 104_i.It is single
First battery management circuit 104_i mainly includes the isolation of measuring circuit 202, first telecommunication circuit 204, fortune
Calculate control circuit 206 and storage circuit 208.
Measuring circuit 202 is for example including voltage sensor and temperature sensor, to measure battery pack
102_i magnitude of voltage Vi and temperature value Ti.
The communication that first isolation telecommunication circuit 204 can externally receive and send messages as element cell module Mi
Module, for example, receive the System current I and system charge that circuit 106 is detected from current capacity
Value Q, and transmit it to arithmetic control circuit 206.Element cell module Mi can also pass through first
Isolate telecommunication circuit 204 and carry out information transmission with other element cell modules (such as Mi+1).Implement one
In example, the first isolation telecommunication circuit 204 is for example realized by magnetic coupler element or optical coupling element, is reached
The voltage level at two ends and data-signal is transmitted inside and outside to isolation module.
Arithmetic control circuit 206 according to magnitude of voltage Vi, temperature value Ti, System current I and can be
Battery pack 102_i battery information BIi in system charge value Q computing unit battery modules Mi.Computing control
Circuit 206 processed is, for example, at microprocessor, microcontroller, specific purpose application circuit or other computings
Manage circuit.Arithmetic control circuit 206 can be carried out to the battery pack 102_i in element cell module Mi
Real-time battery information estimation algorithm computing, to obtain the residual electricity of battery, deterioration capacity, internal resistance, strong
The associated batteries information such as health state BIi.Operation result (such as battery information BIi) will be stored in element cell
Storage circuit 208 built-in module Mi.Storage circuit 208 can be the non-volatile of any form
Memory bank.
In one embodiment, element cell management circuit 104_i also includes power supply unit 210.Power supply
Unit 210 is, for example, a DC-to-dc converter, can change the electric energy stored by battery pack 102_i
For the power source of each functional circuit inside element cell module Mi.For example, when the first isolation
Telecommunication circuit 204 needs two groups of power supplys with normal operation, the electricity of first isolation telecommunication circuit 204 one end
Source can be supplied by power supply unit 210, and other end then can be by governor circuit 108 (such as in governor circuit
Main power source converter) supply.
In one embodiment, element cell management circuit 104_i also includes balance control circuit 212,
Optionally one or more target batteries in battery pack 102_i can be carried out according to battery information BIi
Discharge and recharge, to balance global voltage.For example, balance control circuit 212 can be by communication mode
The battery information BIi such as highest, minimum voltage, temperature in acquisition unit battery module Mi, and according to electricity
Pond information BIi is balanced the computing of control logic by arithmetic control circuit 206, then according to computing
Switch arrays in the balance control circuit 212 of output control, with optionally to battery pack 102_i
In one or more batteries carry out discharge and recharge.
For the operating mechanism for the balance control circuit for helping to understand the embodiment of the present invention, arrange in pairs or groups individually below
Fig. 3 and Fig. 4 are illustrated.
Fig. 3 is the block diagram of the balance control circuit 212 according to one embodiment of the invention.Balance control
Circuit 212 couples battery pack 102_i, and wherein battery pack 102_i includes one or more batteries B1~BK (K
For positive integer).Battery pack 102_i can be any one institute in battery pack 102_1~102_N in Fig. 1
The battery strings of composition, but the present invention is not limited thereto.In the example in figure 3, balance control circuit
212 be global voltage is reached balance by charging mechanism.
Balance control circuit 212 includes energy storage device 304 and switch arrays 306.Energy storage device 304
For chargeable and electric discharge the device of an analogous action power supply.Switch arrays 306 are coupled to battery
B1~BK, fills to make at least target battery in battery B1~BK optionally be electrically coupled to
Discharge bus EQbus (for example connects at the positive and negative end of target battery with discharge and recharge bus EQbus).
Energy storage device 304 is coupled to charging bus by the first charge switch S1 and the first discharge switch S3
EQbus, the first charge switch S1 and the first discharge switch S3 systems control energy storage device 304 and switch
Whether turned between array 306, energy storage device 304 is coupled to external by the second charge switch S2
External power source 308, the second charge switch S2 systems control energy storage device 304 and external power source 308
Between whether turn on.
When the first discharge switch S3 is conducting, energy storage device 304 will be discharged and be filled to being connected to
Discharge bus EQbus target battery is charged, to lift the voltage of target battery.On the contrary,
If wish that target battery charges to energy storage device 304, the first charge switch S1 is turned on, makes carry
Energy storage device 304 is charged in discharge and recharge bus EQbus target battery, to reduce target battery
Voltage.In addition, can also turn on the second charge switch S2, make external power source 308 to energy storage device 304
Charging.When being charged usually without using external power source 308 to energy storage device 304, then disconnect second and fill
Electric switch S2, to avoid energy storage device 304 from persistently consuming the electric power of external power source 308.Specifically,
When any battery B1~BK needs to supplement energy by energy storage device 304 in battery pack 102_i, then
Energy storage device 304 arranges in pairs or groups switch arrays 306 via the first discharge switch S3 can be to battery pack 102_i
Middle any battery B1~BK chargings, now energy storage device 304 is the equal of discharge condition.Work as energy storage
, can be directly by simultaneously turning on the second charge switch S2 and during not enough power supply inside device 304
One discharge switch S3 paths allow external power source 308 by switch arrays 306 to appointing in battery pack 102_i
One battery B1~BK chargings.In addition, energy storage device 304, which can also receive two kinds respectively, supplements energy
Charging modes：One kind is for external power source 308 via the second charge switch S2 of conducting to energy storage device
304 chargings, external power source 308 can be isolated low voltage dc source in system (in Fig. 1
External power source 116), the charging to energy storage device 304 is realized using 12 volts of lead-acid battery.
Another the first charge switch S1 with particular battery B1~BK by switch arrays 306 by conducting
And energy storage device 304 is charged.This design architecture is only capable of selecting one of which charging side in the same time
Method, two kinds of charging methods can not be operated simultaneously.
For example, if in battery pack 102_i battery B1 voltage less than/be significantly lower than battery pack
The battery of other in 102_i B2~BK voltage, switch arrays 306 will connect battery B1 and discharge and recharge
Bus EQbus, and disconnect other batteries B2~BK and discharge and recharge bus EQbus connection.Now,
When the first discharge switch S3 and the second charge switch S2 switch to conducting, equivalent to using external power source
308 individually charge to battery B1, or when the energy of energy-storage system 304 is enough, then individually open storage
Can device 304 the first discharge switch S3 with directly via discharge and recharge bus EQbus to battery B1
Charging so that the voltage of voltage and other batteries B2~BK reaches unanimity, and thus reaches overall electricity
Flatten weighing apparatus.
Fig. 4 is the block diagram of the balance control circuit 212 according to one embodiment of the invention.Balance control
Circuit 212 couples battery pack 102_i, and wherein battery pack 102_i includes one or more batteries B1~BK (K
For positive integer), battery pack 102_i can be any one institute in battery pack 102_1~102_N in Fig. 1
The battery strings of composition, but the present invention is not limited thereto.In the example in fig. 4, balance control circuit
212 be global voltage is reached balance by discharge mechanism.
Balance control circuit 212 includes discharger 404 and switch arrays 306.Discharger 404
Resistance or other dissipative cells in this way.Switch arrays 306 are coupled to battery pack 102_i, to select
Property at least target battery in battery B1~BK is set to be electrically coupled to discharge and recharge bus EQbus.
Discharger 404 is coupled to discharger 404 and discharge and recharge bus EQbus by the second discharge switch S4
Between, whether turned between the second discharge switch S4 systems control discharger 404 and switch arrays 306.
When the second discharge switch S4 conductings, the target battery for being connected to discharge and recharge bus EQbus will be by putting
Electrical equipment 404 is discharged so that voltage declines.
For example, if in battery pack 102_i battery B1 voltage higher than/apparently higher than battery pack
The battery of other in 102_i B2~BK voltage, switch arrays 306 will connect battery B1 and discharge and recharge
Bus EQbus, and disconnect other batteries B2~BK and discharge and recharge bus EQbus connection.Now,
When the second discharge switch S4 is conducting, battery B1 will be individually discharged so that voltage and other electricity
Pond B2~BK voltage reaches unanimity, and thus reaches the overall balance of voltage.
Fig. 5 is one of the block diagram of Fig. 1 governor circuit 108.As shown in figure 5, governor circuit
108 main the second isolation telecommunication circuits 502, the isolation of main arithmetic control circuit the 504, the 3rd of including communicate
Circuit 506, main power source converter 508, main program storage circuit 510, timing and wake-up circuit 512,
ON-OFF control circuit 514 and data storage circuitry 516.
Second isolation telecommunication circuit 502 couples main arithmetic control circuit 504, and it is mainly responsible for and each list
First battery module M1~MN information transmit-receive.For example, the second isolation telecommunication circuit 502 can connect
The information (such as battery information BI1~BIN) returned by each unit battery module M1~MN is received, or
Data and control command are sent to each unit battery module M1~MN.
Main arithmetic control circuit 504 be responsible for all measurements in the whole battery system 100 of control, communication,
Each portion's circuits such as data storage, switch control, and the information provided according to each portion's circuit carries out computing
With control action.For example, main arithmetic control circuit 504 can be according to element cell module M1~MN
The information (such as battery information BI1~BIN) of passback calculates the system battery information of integral battery door system 100
SBI (seeming highest/minimum voltage and temperature information), or returned according to element cell module M1~MN
The alarm signal of biography operates to judge whether to perform power-off etc..Meanwhile, main arithmetic control circuit 504 is also
It is responsible for receiving the instruction of external device (ED) 110 and replys relevant information.
3rd isolation telecommunication circuit 506 couples main arithmetic control circuit 504, and it is mainly responsible for battery system
The overall information (such as system battery information SBI) of 100 pairs of return batteries of external device (ED) 110 of system, makes outer
Part device 110 can regulate and control its power consumption situation according to battery information or carry out other respective operations.
Main power source converter 508 couples external power source 116, is carried external power source 116 to be converted to
For the supply of electric power (such as 5 volts voltage) of all circuit blocks on whole governor circuit 108.In addition,
Due to the isolation telecommunication circuit (such as Fig. 2 isolation telecommunication circuit 204) in element cell module M1~MN
Independent power supply is needed to supply the effect that can be only achieved isolation, therefore the output of main power source converter 508
The power supply that power supply also can be used for needed for supply each unit battery module M1~MN isolation telecommunication circuit.
In one embodiment, main power source converter 508 can be not included in governor circuit 108, and with independence
Circuit realize.
Main program storage circuit 510 couples main arithmetic control circuit 504, to store main operation control
Circuit 504 performs computing and the related program code needed for Row control.Furtherly, it is all to pass through
Isolation communication received data, if desired by relevant treatments such as computing and Row controls, and according to
Different conditions need to have the design such as different control actions, and related program code is storable in main program and deposited
Storing up electricity road 510.
Timing couples main arithmetic control circuit 504 with wake-up circuit 512, to calculate battery system 100
Date when grade correlation time information, battery system can be also waken up by setting fixed time period
System 100 enters back into sleep pattern after carrying out self detection.
ON-OFF control circuit 514 is controlled by main arithmetic control circuit 504 optionally to switch principal current
Switch 114.For example, main arithmetic control circuit 504 may be in response to element cell module M1~MN
Transmitted alarm signal, the urgency message line EL or System current I/ system charges being enabled
Value Q reaches the situation of warning conditions, by ON-OFF control circuit 514 close principal current switch 114 with
Carry out power operation.
Data storage circuitry 516 couples main arithmetic control circuit 504, to storage battery system 100
Related Ginseng Number, those parameters are for example used to refer to the model of battery system 100, the date of production, electricity
Pond Protection parameters, highest/minimum voltage, temperature, residual electricity, impedance, the healthy shape of each string battery pack
State etc..
Fig. 6 is one of the block diagram of Fig. 1 current capacity detection circuit 106.Current capacity is detected
Circuit 106 includes the 4th isolation telecommunication circuit 602, current capacity computing circuit 604, information storage
Circuit 606, power supply changeover device 608, program storing circuit 610 and current sense and protection circuit
612。
The 4th isolation coupling current capacity of telecommunication circuit 602 computing circuit 604, it is mainly responsible for electric current
Communication/signal transmitting and receiving of electric quantity detecting circuit 106 and external circuit part.For example, the 4th isolation
Telecommunication circuit 602 can be by communication bus by data (such as System current I and system charge value
Q) send to each unit battery module M1~MN and governor circuit 108.
Current capacity computing circuit 604 can obtain system according to the current measurement data of current sensor 112
Unite current value I, and calculates charge and discharge electric quantity integration result according to the sampling period of setting, to produce
Raw system charge value Q.After possessing System current I and system charge value Q, current capacity computing
Circuit 604 can be broadcasted System current I with system charge value Q by isolating telecommunication circuit 602
Mode is sent to carry in all circuit blocks on the internal communication network of battery system 100, for example singly
First battery module M1~MN and governor circuit 108.
The coupling current capacity of information storage circuit 606 computing circuit 604, it is responsible for storing current capacity
Parameter needed for the operation result and calculating process of computing circuit 604, seem current measurement data,
System current I and system charge value Q etc..
Power supply changeover device 608 couples external power source 116, and external power source 116 can be converted to electric current by it
Electric power needed for each circuit block in the inside of electric quantity detecting circuit 106.Or, in one embodiment, electricity
Flowing electric quantity detecting circuit 106 can be directly by power-supply system (such as Fig. 5 main power source turn of governor circuit 108
Parallel operation 508) it is powered.
The coupling current capacity of program storing circuit 610 computing circuit 604, to store current capacity fortune
The related program code needed for the arithmetic system current value I of circuit 604 and system charge value Q is calculated, for example
Include how current signal being converted into actual current size, electric quantity integration and judge discharge and recharge shape
State etc. calculates program code.
Current sense couples current sensor 112, its measurable current sensor with protection circuit 612
Pressure difference signal on 112 is for the computing generation system current value I of current capacity computing circuit 604.One
In embodiment, when electric current occurs abnormal, current sense also can be directly by tight with protection circuit 612
Anxious circular line EL circulates a notice of governor circuit 108 to be powered off.
In one embodiment, current capacity detection circuit 106 can be integrated among governor circuit 108.
Now, current capacity detects that circuit 106 is obtained after current measurement data from current sensor 112, meeting
The main arithmetic control circuit 504 for sending measurement data to governor circuit 108 carries out computing to obtain system
Unite current value I and system charge value Q, then is broadcast to each unit by the second isolation telecommunication circuit 502
Battery module M1~MN.
In summary, the battery system that the embodiment of the present invention is proposed can be by each unit battery module voluntarily
Computing and the battery information for storing correspondence battery pack.Because the battery information of each battery pack is all stored in it
On corresponding unit battery module, as long as therefore collocation swapping type battery means design, you can that will deteriorate
The element cell module of fast or abnormal battery pack is replaced, and so can not only greatly improve battery pack
Maintainability, recycling property, can more reduce battery pack because the hiding risk born needed for damage with into
This.Further, since each unit battery module can voluntarily calculate the battery information in respective modules, therefore can
The operand of governor circuit in effective sharing system, and then reduce the requirement to system operations and cost.
On the other hand, each unit battery module can also carry balance control circuit, with automatic according to battery information
Adjust the balance of voltage state of battery pack, and then lifting system service efficiency.
Particular embodiments described above, is carried out to the purpose of the present invention, technical scheme and beneficial effect
It is further described, it should be understood that the foregoing is only the specific embodiment of the present invention,
It is not intended to limit the invention, within the spirit and principles of the invention, any modification for being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
1. a kind of battery system, including：
One element cell module, including：
One battery pack, to store electric energy；And
One element cell manages circuit, according to a System current, a system charge value, is somebody's turn to do
One magnitude of voltage of battery pack and a temperature value of the battery pack calculate a battery of the battery pack
Information；
One current capacity detects circuit, couples the element cell module, and foundation flows through the one of the battery pack
Electric current produces the System current, and the System current is integrated to produce the system charge value,
And send the System current and the system charge value to the element cell module；And
One governor circuit, couples the element cell module, and battery letter is received from the element cell module
Breath, and produce a system battery information to provide to an external device (ED) according to the battery information.
2. battery system as claimed in claim 1, it is characterised in that also include：
One current sensor, is concatenated with the battery pack, and is coupled to current capacity detection circuit, is used
To measure the electric current for flowing through the battery pack.
3. battery system as claimed in claim 1, it is characterised in that also include：
One principal current is switched, and is controlled by the governor circuit, is selectively turned on or cut off the battery system
A discharge and recharge path；
Wherein when the magnitude of voltage meets a voltage warning conditions or the temperature value meets a temperature warning bar
Part, the element cell manages circuit and sends an alarm signal to the governor circuit via a communication bus,
The governor circuit is set to close principal current switch to cut off the discharge and recharge path；
When the System current meets an electric current warning conditions or the system charge value meets electricity police
Show condition, the governor circuit voluntarily closes principal current switch to cut off the discharge and recharge path.
4. battery system as claimed in claim 3, it is characterised in that when the element cell manages electricity
Road can not send the alarm signal by the communication bus to the governor circuit, element cell management electricity
The urgency message line of road enable one, makes the governor circuit close principal current switch to cut off the charge-discharge circuit
Footpath.
5. battery system as claimed in claim 1, it is characterised in that the element cell manages circuit
Including：
One measuring circuit, measures magnitude of voltage and the temperature value of the battery pack；
One first isolation telecommunication circuit, receives the System current that circuit is detected from the current capacity
And the system charge value；
One arithmetic control circuit, according to the magnitude of voltage, the temperature value, the System current and this be
System charge value, calculates the battery information of the battery pack；And
One storage circuit, stores the battery information.
6. battery system as claimed in claim 1, it is characterised in that the element cell manages circuit
Including：
One balance control circuit, according to the battery information optionally to one or more in the battery pack
Target battery carries out discharge and recharge.
7. battery system as claimed in claim 6, it is characterised in that the balance control circuit includes：
One energy storage device, chargeable and electric discharge；And
One switch arrays, are coupled to the battery pack, optionally make one or more target batteries electrical
It is connected to a discharge and recharge bus；
Wherein the energy storage device is coupled to this with one first discharge switch by one first charge switch and filled
Electric bus, to control whether to turn between the energy storage device and the switch arrays, the energy storage device by
One second charge switch is coupled to an external external power source, to control the energy storage device and the external electrical
Whether turned between source；
Wherein when first discharge switch is conducting, the energy storage device is to being connected to the discharge and recharge bus
One or more target batteries are charged；
When first charge switch is conducting, one or more target batteries of the discharge and recharge bus are to this
Energy-storage battery charges；
When second charge switch is conducting, the external power source charges to the energy storage device.
8. battery system as claimed in claim 6, it is characterised in that the element cell manages circuit
Including：
One discharger；And
One switch arrays, are coupled to the battery pack, optionally make one or more target batteries electrical
It is connected to a discharge and recharge bus；
Wherein the discharger is coupled to the discharger and the discharge and recharge bus by one second discharge switch
Between, to control whether to turn between the discharger and the switch arrays；
Wherein when second discharge switch is conducting, one or more mesh of the discharge and recharge bus are connected to
Mark battery is discharged by the discharger.
9. battery system as claimed in claim 1, it is characterised in that the battery information includes the electricity
The residual electricity of pond group, deterioration capacity, internal resistance and health status at least one.
10. battery system as claimed in claim 1, it is characterised in that current capacity detection electricity
The System current and the system charge value are broadcasted to the element cell via a communication bus on road
Module.
11. battery system as claimed in claim 1, it is characterised in that the governor circuit includes：
One main arithmetic control circuit, battery information to be returned according to the element cell module is calculated
The system battery information of the battery system；
One second isolation telecommunication circuit, couples the main arithmetic control circuit, to receive passback from the list
The battery information of first battery module；
One the 3rd isolation telecommunication circuit, couples the main arithmetic control circuit, to be carried to the external device (ED)
For the system battery information；
One main power source converter, couples an external power source, the external power source is converted to the master
Control the supply of electric power of circuit；
One main program storage circuit, couples the main arithmetic control circuit, to store the main operation control
Circuit performs the program code of computing and Row control；
One timing and wake-up circuit, couple the main arithmetic control circuit, to calculate the battery system
Temporal information；
One ON-OFF control circuit, is controlled by the main arithmetic control circuit optionally to switch a principal current
Switch, with a discharge and recharge path of the on or off battery system；And
One data storage circuitry, couples the main arithmetic control circuit, the ginseng to store the battery system
Number, the parameter indicates model, the date of production, the battery protection parameter of the battery system, the battery pack
Highest or minimum voltage, temperature, residual electricity, impedance and health status at least one.
12. battery system as claimed in claim 1, it is characterised in that current capacity detection electricity
Road includes：
One current capacity computing circuit, should to be obtained according to the current measurement data of a current sensor
System current, and by calculating charge and discharge electric quantity integration result to produce the system charge value,
Wherein the current sensor system connects with the battery pack；
One the 4th isolation telecommunication circuit, couples the current capacity computing circuit, to by the system power
Value and the system charge value are sent to the element cell module and the governor circuit；
One information storage circuit, couples the current capacity computing circuit, to store the System current
And the system charge value；
One power supply changeover device, couples an external power source, the external power source is converted to the electric current
The supply of electric power of electric quantity detecting circuit；And
One program storing circuit, couples the current capacity computing circuit, to store current capacity fortune
Calculate the circuit computing System current and the program code of the system charge value；And
One current sense and protection circuit, couple the current sensor, to measure the current sensor
On pressure difference signal produce the System current for the current capacity computing circuit computing.
13. a kind of battery management system, the information suitable for managing a battery pack, the battery management system
Including：
One element cell manages circuit, to according to a System current, a system charge value, the electricity
One magnitude of voltage of pond group and a temperature value of the battery pack calculate a battery information of the battery pack；
One current capacity detects circuit, couples element cell management circuit, the electricity is flowed through to foundation
One electric current of pond group produces the System current, and the System current is integrated is to produce this
System charge value, and the System current and the system charge value are sent to element cell management electricity
Road；And
One governor circuit, couples element cell management circuit, to manage circuit from the element cell
The battery information is received, and produces a system battery information to provide to outside one according to the battery information
Device.
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| Application Number | Priority Date | Filing Date | Title |
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| TW105106176A TWI581542B (en) | 2016-03-01 | 2016-03-01 | Battery management system and battery system using the same |
| TW105106176 | 2016-03-01 |
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| US (1) | US10700388B2 (en) |
| CN (1) | CN107147153B (en) |
| TW (1) | TWI581542B (en) |
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Also Published As
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| CN107147153B (en) | 2021-01-26 |
| US10700388B2 (en) | 2020-06-30 |
| TW201733234A (en) | 2017-09-16 |
| US20170256825A1 (en) | 2017-09-07 |
| TWI581542B (en) | 2017-05-01 |
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